CVE-2026-0740
Ninja Forms - File Upload <= 3.3.26 - Unauthenticated Arbitrary File Upload
Description
The Ninja Forms - File Uploads plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'NF_FU_AJAX_Controllers_Uploads::handle_upload' function in all versions up to, and including, 3.3.26. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The vulnerability was partially patched in version 3.3.25 and fully patched in version 3.3.27.
INFO
Published Date :
April 7, 2026, 5:16 a.m.
Last Modified :
April 27, 2026, 7:04 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update the Ninja Forms File Uploads plugin to version 3.3.27.
- Verify that file type validation is properly configured.
Public PoC/Exploit Available at Github
CVE-2026-0740 has a 8 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-0740.
| URL | Resource |
|---|---|
| https://ninjaforms.com/extensions/file-uploads/ | |
| https://www.wordfence.com/threat-intel/vulnerabilities/id/0b606ded-ab50-486a-9337-97ee9f452f12?source=cve |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-0740 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-0740
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
CVE-2026-0740
Python
Ninja Forms File Uploads <= 3.3.26 - Unauthenticated Arbitrary File Upload
Python
None
Python Shell PHP HTML
POC
Python
Ninja Forms File Uploads <= 3.3.26 - Unauthenticated Arbitrary File Upload to RCE (CVE-2026-0740)
cve exploit file-upload plugin poc premium rce vulnerability wordpress cve-2026-0740 ninja-forms-uploads
Python
Latest CVEs with their Proof of Concept exploits.
Python HTML
TOP All bugbounty pentesting CVE-2023- POC Exp RCE example payload Things
bugbounty cve exp exploit payload poc rce vulnerability
Shell
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-0740 vulnerability anywhere in the article.
-
The Hacker News
LMDeploy CVE-2026-33626 Flaw Exploited Within 13 Hours of Disclosure
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Wormable Bugs: Microsoft April 2026 Patch Tuesday Fixes Two “Zero-Interaction” RCE Flaws
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CISA Adds Critical Apache ActiveMQ RCE Flaw to KEV Catalog
The Cybersecurity and Infrastructure Security Agency (CISA) has issued an urgent directive after adding a high-severity vulnerability in Apache ActiveMQ to its Known Exploited Vulnerabilities (KEV) Ca ... Read more
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⚡ Weekly Recap: Fiber Optic Spying, Windows Rootkit, AI Vulnerability Hunting and More
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The CVE Watchtower: Weekly Threat Intelligence Briefing (April 6 – April 12, 2026)
Welcome to this week’s vulnerability digest. As we close out the first full week of April, security teams are faced with a challenging landscape of critical zero-days, active exploitations, and severe ... Read more
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CybersecurityNews
50,000 WordPress Sites Exposed to Critical Ninja Forms File Upload RCE Vulnerability
A critical security flaw in the popular WordPress plugin “Ninja Forms – File Upload” has left approximately 50,000 websites vulnerable to complete takeover. Tracked as CVE-2026-0740, this flaw boasts ... Read more
The following table lists the changes that have been made to the
CVE-2026-0740 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Apr. 07, 2026
Action Type Old Value New Value Added Description The Ninja Forms - File Uploads plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'NF_FU_AJAX_Controllers_Uploads::handle_upload' function in all versions up to, and including, 3.3.26. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The vulnerability was partially patched in version 3.3.25 and fully patched in version 3.3.27. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-434 Added Reference https://ninjaforms.com/extensions/file-uploads/ Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/0b606ded-ab50-486a-9337-97ee9f452f12?source=cve